add png handle

application/controllers/info_amp.php

@@ -329,4 +329,35 @@ class Info_amp extends CI_Controller
             ));
         }
     }
+
+    public function handel_png_source() {
+        $png_base64 = $this->input->post('png_base64');
+        //$png_base64 = 'iVBORw0KGgoAAAANSUhEUgAAABwAAAASCAMAAAB/2U7WAAAABlBMVEUAAAD///+l2Z/dAAAASUlEQVR4XqWQUQoAIAxC2/0vXZDrEX4IJTRkb7lobNUStXsB0jIXIAMSsQnWlsV+wULF4Avk9fLq2r8a5HSE35Q3eO2XP1A1wQkZSgETvDtKdQAAAABJRU5ErkJggg==';
+        $file = md5($png_base64).'.jpg';
+        $path = realpath('../cht-system/views/from_word').'/'.$file;
+        $png_base64 = str_replace('data:image/png;base64,', '', $png_base64);
+        $png_base64 = str_replace('data:image/jpg;base64,', '', $png_base64);
+        $png_base64 = base64_decode($png_base64);
+        $im = imagecreatefromstring($png_base64);
+        //保存图像
+        imagejpeg($im, $path);
+        //释放内存
+        imagedestroy($im);
+        $size = getimagesize($path);
+        if($png_base64) {
+            echo(json_encode(array(
+                'status' => 'success',
+                'path' => '/information-view/from_word/'.$file,
+                'width' => $size[0],
+                'height' => $size[1]
+            )));
+        } else {
+            echo(json_encode(array(
+                'status' => 'error',
+                'width' => 0,
+                'height' => 0
+            )));
+        }
+    }
+    
 }